Sectional form for making reenforced piles



Patented July 28, 1931 UNITED STATES PATENT OFFICE HOWARD H. JENKINS, F LOS ANGELES, CALIFORNIA, ASSIGNOR. TO AMERICAN CON- CRETE PIPE COMPANY, OAF LOS ANGELES, CALIFORNIA SECTIONAL FORM FORMAKING REENFORCED PILES Application led November 31928. Serial No. 316,978.

This invention relates to devices in which Concrete and other similar suitable material can be handled for making piles or posts of considerable length.

One of the objects of this invention is to provide a form in which a pile can be manufactured with a central bore or hole throughout the length of the pile without material or any particular effort or skill on the part 1o of the person handling the material in the form. l

Another object is to `produce a form that can be rotated at considerable speed around its longitudinal axis soA that any material disposed in the form will by centrifugal force be forced against the inside of the form away from the central axis so as to automatically leave a central passage throughout the length of the pile when the 2o pile is rotated with the form.

Another object is to provide a form in which reenforcing material can be held to become firmly and properly imbedded in any material disposed in the form.

Another object is to provide a form made in sections whereby a pile of any desired length can be manufactured.

Another object is to provide a form that can easily be removed from such a pile.

Another object is to provide a form that can be held together at the adjoining ends by a closed ring.

Other objects will appear from the following description and appended claims as well as from the accompanying drawings, in which- Fig. l is a fragmentary longitudinal midsectional view of a form with adjoining flanges, one closure of a somewhat pointed end and another closure in form of a plain plate or ange whereby piles can be manufactured according to the principles of this invention.

Fig. 2 is a cross-section through the form on line 2 2 of Fig. l

Fig. 3 is an end elevation of the closed interconnecting ring to be disposed between form sections.

Fig. 4 is a somewhat diagrammatic illustration in end view showing the manner in which theform can be mounted on rollers wherebyl the form maybe rotated around its longitudinal axis.

Fig. 5 is an end elevation of the end-closing flange seen in the direction of theV arrow 5 indicated in Fig. l.

As illustrated, the form consists principally of split tubular members 6 provided with connecting-flanges 7 whereby tubular members can be joined in sections endwise into a desired longer form.

A typical section consists then principally of longitudinally split members 6 and a flange 7 on each of these members7 as more clearly illustrated by numerals 62L and 7 ain Fig. l. The split members are provided with longitudinally disposed flanges 8 whereby the members can be longitudinally yfastened together into a rigid section.

It is immaterial whether the cross-section of such a section is then exactly of a round or circular shape orlany other shape. Columns of hexagonal shape may be-desired and the form can easily be arranged so that such a result can be accomplished in the form, and itl will be understood that any other outside form can be provided for by the shape of the form. v f

- The principal feature of this invention is that the form is provided with end-anges that can be disposed on rollers whereby the form can be rotated around its longitudinal axis regardless of the outer shape wherefore the flanges, of course, must be of circular outside to allow such a mounting for rotation of the form on the end-flanges inthe manner indicated in Fig. 1l.

As illustrated in Fig. 2, for a round column or pile the members 6 are preferably in halves with the longitudinal edges 9 and 9a either setback or protruding beyond the flange 8 on the members, whereby an aligning -of the halves into a firmly interconnected hole is facilitated.

The longitudinal flanges are provided with a number of holes or apertures 10 for bolts not shown in the drawings, whereby these flanges can be connected to hold the halves of this tubular section together. The

end-flanges, on the other hand, are also prol nected endwise.

The interconnecting flange 12 is provided with holes 13 to align with the holes in the end-flanges 7 whereby the bolts 11 can be pressed throughthe flanges 7 and through the interconnecting flange 12. This interconnecting flange is, furthermore, provided with annular beads 414 to fit into grooves 15 in the end-f1anges 7, facilitating an aligning and assuring a iirm interconnecting of the form sections.

A conical closure 16 is provided tobe secured to one end of one of the form sections whereby any material disposed in this form may receive a'pointed end which facilitates a driving of a finished concrete post into the ground.

A plain -end-.plate 17 is provided to be secured on the end of one of the form sections, serving to hold concrete and similar material in the form `'in a certain required manner.. This lend-flange is provided with a central aperture 18 closed vby a removable plate 19. The end-plate 17 is, furthermore, provided with holes 2O to facilitate a passing of reenforcing bars through this end-plate.

lVit-h this arrangement short end-s of piles can 'be manufactured. rThe plain vend-plate '17 can be attached tto both lends of form sections and reenforcing bars can 'be -disposed in the forms so :as to protrude to Ya suitable extent vthrough the plain end-plate 17 while post material is disposed in the form, so that such a short pile section when finished has reenforcing .bars protruding from its end which serve to interconnect several short pile sections by placing concrete fbetween the ends of such short pilesections around th protruding reenforcing bar-ends.

To produce a concrete Ypile withV the reenforcing material properly disposed vthrough and imbedded -in the material of the .pile and with a central :hole throughout its length, in case iof making short pile sections, the suitable length yof form sections is closed .by the end-plates V17 'on .both .ends with one vclosing plate 19., or the fclosing plate 19 on each of the end-plates, removed while concrete or Aother .suitable pile material is deposited in the form zand 'while 'the -form with the pile material is rotated on a suitable rotating land .supporting 'machina so that, while the form is so rotated, any surplus pile `material and any surplus water can run out or discharge vout .of the holes 18 in the endplates 17, whereby a .passage is produced throughout .the length nf vthe pile material -so rotated in the form It will be understood that with the form disclosed :herewith one .pile :section can lbe *produced with -a gpointed .end by means of the pointed .closure 16 ofthe form and other pile sections can 'be produ-ced with the reenforcing bars protruding from their ends, and that several of such pile sections can be interconnected with one pointed pile section into one long pile of any desired or required length.

The end-flanges 7 are, furthermore, provided with overlapping or engaging edges 21 and 21a whereby interconnected form sections can be sealed at the joints, so that -a finished pile can lbe produced with an evenly smooth outside.

Having thus described my invention, I claim:

1. A longitudinally and transversely sectioned pile form embodying flanges with cylindrical periphery portions whereby the sectioned form when connected and supported on a suitable machinery can be rotated, the flanges having shoulder portions for holding the form against endwise movements while rolling'on themachinery, and an end-flange having an opening whereby surplus pile material and surplus water can be discharged through such opening while the form is being rotated.

2. In a pile form, longitudinally split members, engaging means along the longitudinal edges of the members `for yinterconnecting the members into a closed longitudinal form section, end-flanges on the opposite ends of the section embodying aligning ledges whereby several sections can be aligned into a uniformly hollow form, a kring between each of the sections having a cylindrical periphery whereby the form can be supported on a suitable machinery for rotating the :form -around its longitudinal axis, and closing members for the opposite ends .of the interconnected sections.

In testimony that I 'claim the vforegoing as my invention I have signed my name.

HOWARD H. J ENKIN S., 

